Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
As August unfolds, the average high-temperature reaches a still hot 90.1°F (32.3°C), hinting at a slight fluctuation from the previous month. Mountain Brook in August anticipates an average nighttime temperature of 70.9°F (21.6°C).Heat index
The average heat index in August is appraised at a scorching 107.6°F (42°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
The average relative humidity in August is 72%.Rainfall
In August, the rain falls for 15.7 days. Throughout August, 1.89" (48mm) of precipitation is accumulated. In Mountain Brook, Alabama, during the entire year, the rain falls for 143.1 days and collects up to 18.58" (472mm) of precipitation.Snowfall
In Mountain Brook, snow does not fall in April through October.Daylight
The average length of the day in August is 13h and 22min.On the first day of August, sunrise is at 6:00 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:13 pm CDT.
Sunshine
In August, the average sunshine is 10.3h.UV index
July and August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In August, a daily maximum UV index of 7 leads to the following instructions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in August?
What is the average humidity in August?
How much does it rain in Mountain Brook in August?
When it does not snow?
How many hours of daylight does Mountain Brook have in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Mountain Brook have in August?
What are the months with the highest UV index?
How high is the UV index in August?
Average temperature in August
Mountain Brook, AL
- Average high temperature in August: 90.1°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (50.7°F).
- Average low temperature in August: 70.9°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in August
Mountain Brook, AL
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in August
Mountain Brook, AL
- Average wind speed in August: 4.5mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in August
Mountain Brook, AL
- Average humidity in August: 72%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Mountain Brook, AL
- Average rainfall in August: 1.89"
The wettest month (with the highest rainfall) is June (1.97").
The driest month (with the least rainfall) is November (1.02").
Average rainfall days in August
Mountain Brook, AL
- Average rainfall days in August: 15.7 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in August
Mountain Brook, AL
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Mountain Brook, AL
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Mountain Brook, AL
- Average daylight in August: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 10h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in August
Mountain Brook, AL
- Average sunshine days in August: 12.3 days
The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in August
Mountain Brook, AL
- Average UV index in August: 7
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in August
Mountain Brook, AL
- Average cloud cover in August: 31
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility in August
Mountain Brook, AL
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Mountain Brook, Alabama, USA
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